/Engine/Source/Editor/BlueprintGraph/Classes/EdGraphSchema_K2.h
Some schemas have nodes that support the user dynamically adding pins when dropping a connection on the node
Returns the new pin if created
virtual [UEdGraphPin](API\Runtime\Engine\EdGraph\UEdGraphPin) * DropPinOnNode ( [UEdGraphNode](API\Runtime\Engine\EdGraph\UEdGraphNode) * InTargetNode, const [FName](API\Runtime\Core\UObject\FName) & InSourcePinName, const [FEdGraphPinType](API\Runtime\Engine\EdGraph\FEdGraphPinType) & InSourcePinType, EEdGraphPinDirection InSourcePinDirection ) const